The star told Metal Hammer magazine: "I was on 11 hits of acid a day. I dropped so much acid I'm surprised I can still speak! I'd smoke a bunch of crack, do a bit of meth and just sit there and freak out. Then I'd smoke opium to come down.

"I weighed 110 pounds. My mom said I looked like I stepped out of Auschwitz. So I used pot to get off drugs."

He had also previously revealed that he was molested at the age of seven by an unknown adult, and said: "If I think back to when I was really young, to when I was being molested, to when all these horrible things were going on around me, I shudder."